Datex-Ohmeda 7900 Service Manual page 79

4/Tests and Troubleshooting
Remarks
The calibration is performed as follows:
1. Open the flow valve to the starting point that was found (where
manifold pressure is 91-92 cm H
2. Wait for the flow to stabilize.
3. Once the flow stabilized, set the flow to 12 L/min.
4. Wait for the flow to stabilize.
5. Perform steps 1-6 replacing step 3 with 11 L/min., 10 L/min., 9 L/min.
1 L/min..
Therefore, there are 12 points that are calculated for the bleed resistor calibration.
Calibration points may be greater than the listed cm H
points is less than the cmH
es, the calculated bleed resistor calibration points are stored in EEPROM.
1503-0151-000
O listed below, calibration fails. If the calibration pass-
2
67 cm H
59 cm H
52 cm H
45 cm H
38 cm H
30 cm H
24 cm H
18 cm H
12 cm H
7 cm H
-5 cm H
-5 cm H
5/26/0
O).
2
O, but if any one of these
2
0
2
0
2
0
2
0
2
0
2
0
2
0
2
0
2
0
2
0
2
0
2
0
2
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